CVE-2026-21991

MEDIUM

Oracle Linux 8 - Arbitrary File Creation

Title source: llm
STIX 2.1

Description

A DTrace component, dtprobed, allows arbitrary file creation through crafted USDT provider names.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
Oracle Advisory
https://linux.oracle.com/cve/CVE-2026-21991.html

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 1.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-22
Status published
Products (6)
oracle/linux 8
oracle/linux 9 0
oracle/linux 10 0
Oracle Corporation/Oracle Linux 10
Oracle Corporation/Oracle Linux 8
Oracle Corporation/Oracle Linux 9
Published Mar 16, 2026
Tracked Since Mar 17, 2026